CN1928249A

CN1928249A - Method for sand prevention and binding and greening with coverlay

Info

Publication number: CN1928249A
Application number: CN 200610010573
Authority: CN
Inventors: 孙景文
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-19
Filing date: 2006-09-19
Publication date: 2007-03-14

Abstract

The invention relates to a covering film preventing sand and virescence method, which is that laying reentrant plastic covering film preventing sand in sand trough wall, fully burying sand in the covering film so that one end of the covering film, with 30-50kg force per square meter, is fixed in sand, setting several of cuts on the covering film, planting herb applied in sand or shrub with economic value in cuts. The covering film is not oxidized for 10-30 years and low cost. It not only prevents sand flowing in explicit sand zone but also sand winding in intrinsic sand zone and sand weather forming. It is the efficiency means that widely and drastically curing soil desertification and sand moving.

Description

A kind of coverlay is anti-dust to fix the sand and greening method

Technical field

The present invention relates to a kind of anti-dust overburden that fixes the sand, be coverlay specifically with plastic material, cover on volt sand ribbon or the bright sand ribbon sand ground, stop high wind that sand or yellow sand are blown afloat formation with dust and sand weather, the invention still further relates to cutting opening place on coverlay, kind of grass planting or the shrub of planting tree reach sand fixation, relate in particular to that a kind of coverlay is anti-dust to fix the sand and greening method.

Background technology

Desert geology natural calamity; be in the danger side of body human survival; the natural calamity that unique energy can be resisted; along with population increases; the development of farming and animal husbandry; because people's environmental protection consciousness is indifferent, large tracts of land volt sand ribbon vegetation is eaten up by livestock, particularly; can stop that the trees on the loess band of the barrier that bright sand ribbon drift sand moves are cut down; the farmland is opened up wasteland in a large amount of soils, causes the large tracts of land soil erosion, makes the surface water rapid evaporation; force volt sand ribbon and bright sand ribbon to be in drying; relative humidity is in 20% following environment; thereby accelerated the vegetation degeneration of desert area, the grass tree is withered, the soil desertification.From nineteen fifty-five, northwest China, the North China, the annual sandstorm weather that takes place again and again reaches the gram desert in muddy reputation, the mobile drift sand in bright sand ribbons such as hair Wu Su desert, every year is all to surpass five meters speed, advance to the area, BeiJing, China, district, the county at existing edge, Beijing listed potential middle desertification, the area of the soil shifting of sand dunes in.In order to administer the desert area natural calamity, adopt the manual inseminating trees, the plantation woody plant, come preventing and fixing sand, the Shapotou grass lattice sand-protecting barrier sand control greening method of now having promoted stops the danger side of body of drift sand to highway, railway, play good result, this method can only be applied in the unconcerned area of small size sand control.

Face of land preventing and fixing sand dust-proofing agent of China national Department of Intellectual Property bulletin and preparation method thereof and using method, patent announcement number: 1200993, adopt a kind of polyvinyl alcohol, boric acid, dodecyl chlorination ammonium and water mixed liquid of containing, be sprayed on the sandy soil surface in bright abrasive band, make and form the very thin overlay film of one deck on the sandy soil ground, prevent that sand from flowing, but run into storm more than 8 grades, example, also can be blown away the child who weighs about 30 kilograms on the bright sand ribbon, this is sprayed on the sandy soil surface coating, can be broken by wind, and lose the utilization of fixing the sand.The sand-fixing, water preserving, planting grass and tree afforestation desert method of China national Department of Intellectual Property bulletin, number of patent application: 200510037066 is characterized in that, at desert surface bedding simulative grass, and be fixed on the sand ground with umbrella shape nail, with the aqueous soil splendid attire in having the film bag in slit, plant grass planting or sapling and insert implantation hole on the simulative grass, this method is only limited to local sand-fixing greening area and uses.Thoroughly radical cure desert area natural calamity must be accelerated the vegetation plantation of volt sand ribbon district, prevents that bright sand ribbon district drift sand from moving, for fixing the sand will plant big root system shrub tree and herbaceous plant.

Summary of the invention

The technical problem to be solved in the present invention provides that a kind of effective coverlay is anti-dust to fix the sand and greening method, adopt the coverlay of plastic material, utilize fixedly coverlay of sand furrow, cover on volt sand ribbon or the bright sand ribbon sand ground face, resistance shelves high wind blows afloat and dust and sand weather formation sand or yellow sand, in addition, another will solve the greening method of the problem of fixing the sand the present invention, at coverlay upper cut place, plant grass and plant trees, reach the purpose of preventing and fixing sand.

For solving the not enough problem of above-mentioned prior art, coverlay of the present invention is anti-dust to fix the sand and greening method, according to different desert area natural environments, geological disaster degree, every month climatological front, trajectory of cyclone, temperature difference per day changes, precipitation and rainwater evaporation capacity, material composition in the sandy soil, former desert vegetation coverage scale, the pH values of sandy soil etc. select to adapt to the herbaceous plant that this desert area is grown, the shrub tree that economic worth is arranged that root system is big.

Be subjected to the North China of the sandstorm danger side of body, main sand and dust derive from muddy reputation and reach the gram desert, hair Wu Su desert, and silver is agree desert, Ku Buqi desert, cloth of ulan and desert, Tengger desert, the desert of Mongolia.

Be subjected to area, the North China main cities of its evil of sand and dust:

Annual mean strong wind and sandstorm fate

The city	〉=8 grades of strong wind fates	The fate of big sandstorm
The city	〉=8 grades of strong wind fates	The fate of big sandstorm	Beijing	26.7	3.6
Tianjin	40	1.7	Beijing	26.7	3.6
Tianjin	40	1.7	Shijiazhuang	17.4	2.4
Jinan	43.3	1.4	Shijiazhuang	17.4	2.4
Jinan	43.3	1.4	Former greatly	34.2	3.3

Main desert, sand and dust source place natural environment

The desert title	Year is with the water yield	Year is with water day	Year-round average temperature	〉=8 grades of strong wind	Big sandstorm
The desert title	Year is with the water yield	Year is with water day	Year-round average temperature	〉=8 grades of strong wind	Big sandstorm	Muddy reputation reaches the gram desert	386	99	1.6℃	36.8 my god	8.4 my god
Hair Wu Su desert	271	51	6.4℃	12.6 my god	13.8 my god	Muddy reputation reaches the gram desert	386	99	1.6℃	36.8 my god	8.4 my god

Above-mentioned desert area belong to volt sand ribbon, bright sand ribbon, loess area intersect the region, because volt sand ribbon, loess area plant are artificially destroyed, cause the soil desertification, impel the drift sand in bright sand ribbon to advance to the loess area fast, in order to prevent to lie prostrate the sand ribbon desertification, restriction drift sand translational speed, adopt a kind of hot strength height of anti-dust sand fixation, resistance to oxidation, price are low, and the plastic material of nonpollution environment is a coverlay.

1, the present invention is said with anti-dust structure of fixing the sand of coverlay and performing step:

A, push away flatly with bulldozer, the sand dune that unvegetated volt sand ribbon or bright sand ribbon is outstanding, with one of artificial or mechanical equivalent of light excavation, the degree of depth is 20～60 centimeters, and width is 20～50 centimeters a sand furrow, and each sand furrow spacing is 2～10 meters.

B, the coverlay of lopping, lay at the sand ground face, at the sand furrow place, coverlay is laid to the matrix coverlay along the sand furrow wall, dress buries full sandy soil in the matrix coverlay, make coverlay fixedly be embedded in the sandy soil, the covering pulling force of its every square metre coverlay is 30～50 kilograms, coverlay thickness is 0.01～0.05 millimeter, and coverlay per ton can be laid in 1.3～6.6 ten thousand square metres, every square metre of price is 0.02～0.05 dollar, cover the place of film, continue to lay coverlay toward next sand furrow place.

2, the performing step of the greening method of the said another kind of preventing and fixing sand of the present invention:

A, at first with on the coverlay of completing, establish several plantation woody plant and the cutting opening of planting the shrub sapling be provided.

B, respectively between two sand furrows, in the cutting opening, plantation three to ten row adapt to the woody plant that grows in the sandy soil, plant one to the five-element, and the big shrub sapling of root system of economic worth is arranged on coverlay.

C, get soilless cultivation plant nutrient, humus soil mixing water liquid, the little tree shoot root portion that pours into kind of grass planting respectively or plant impels the thriftiness growth.

D, on coverlay, the cutting opening place, smooth one-tenth matrix flows in the cutting opening sleet water naturally, for plant absorbing, reduces the natural evaporation of sleet water.

The invention has the beneficial effects as follows: the coverlay that adopts a kind of anti-dust plastic material that fixes the sand, by in the sand furrow wall, being laid to the matrix coverlay, dress buries full sandy soil in the matrix coverlay, make coverlay one end firmly be embedded in the sand, on the coverlay between two sand furrows of different spacing, establish several cutting openings, the method that another kind of the present invention fixes the sand, be respectively with herbaceous plant, the shrub sapling that economic worth is arranged, kind be planted on the coverlay in the cutting opening, this coverlay intensity height, not oxidation in 10～30 years, cheap, covering pulling force is 30～50 kilograms for every square metre, coverlay not only can stop bright sand ribbon drift sand to move, also stop volt sand ribbon sand and dust to be blown up and form, prevent moisture natural evaporation in the sand, accelerate plant root growth with dust and sand weather, reaching sand fixation, is large tracts of land radical cure soil desertification, drift sand moves, a kind of preventing and fixing sand effective measures that sandstorm forms.

Description of drawings

To be that a kind of coverlay of the present invention is anti-dust fix the sand and the longitudinal plan of greening method Fig. 1.

Fig. 2 is the part section greening schematic diagram of Fig. 1.

1 sandy soil among the figure, 2 sand furrows, 3 coverlays, 4 matrix coverlays, 5 herbaceous plant, 6 shrubs tree, 7 cutting openings, 8 root systems of plant, 9 sleet water.

Specific implementation method

In Fig. 1, the coverlay of preventing and fixing sand (3) adopts a kind of hot strength height, resistance to oxidation, and the plastic material of nonpollution environment is coverlay (3), and its thickness is 0.04 millimeter, and coverlay per ton (3) can be laid 1.7 ten thousand square metres of sand ground faces.

1, its structure of the said coverlay of the present invention (3) preventing and fixing sand effect is passed through following embodiment:

A, pushing away flatly with the bulldozer sand dune that unvegetated volt sand ribbon or bright sand ribbon is outstanding, is that 40 centimeters dark, width are 25 centimeters sand furrow (2) with artificial or degree of depth of mechanical equivalent of light excavation, is 4 meters between each sand furrow spacing.

B, the coverlay of lopping (3), lay on sandy soil (1) ground, locate at sand furrow (2), coverlay (3) is laid to matrix coverlay (4) along sand furrow (2) wall, and in matrix coverlay (4), dress buries full sandy soil (1), coverlay (3) one ends fixedly are embedded in the sandy soil (1), from completing coverlay (3) location, continue to lay toward next sand furrow (2).

2, the greening method of the said another kind of preventing and fixing sand of the present invention passes through following embodiment:

In the embodiment shown in Figure 2, select to adapt to the sandy soil woody plant (5) of middle growth (1), economic worth is arranged, shrub tree fructiferous (6) is the sand-fixing greening plant.

A, at first with on the coverlay of completing (3), establish several cutting openings (7).

B, respectively in coverlay (3) is gone up cutting opening (7), the shrub of the plantation herbaceous plant (5) or the economic worth of planting tree (6) seedling.

C, get soilless cultivation plant nutrient, humus soil mixing water liquid, shrub tree (6) the shoot root portion that pours into the kind grass planting (5) of cutting opening (7) respectively or plant impels the thriftiness growth.

D, go up cutting opening (7) at coverlay (3) and locate, smooth one-tenth matrix makes sleet water (9) along coverlay (3), and flow into cutting opening (7) naturally and locate, for plant absorbing, the natural evaporation of minimizing sleet water (9).

Claims

1, a kind of coverlay is anti-dust fixes the sand and greening method, the anti-dust coverlay that fixes the sand, adopting the plastic material of a kind of hot strength height, resistance to oxidation 10～30 years, nonpollution environment is coverlay, its thickness is 0.01～0.05 millimeter, coverlay per ton can be laid 1.3～6.6 ten thousand square metres, it is characterized in that:

Anti-dust structure and the performing step of fixing the sand of a kind of coverlay:

A, the sand dune that unvegetated volt sand ribbon or bright sand ribbon is outstanding push away flat, and with one of artificial or mechanical equivalent of light excavation, the degree of depth is 20～60 centimeters, and width is 20～50 centimeters a sand furrow, and distance is 2～10 meters between each sand furrow;

B, the coverlay of lopping, lay at the sand ground face, at the sand furrow place, coverlay is laid to the matrix coverlay along the sand furrow wall, and dress buries full sandy soil in the matrix coverlay, makes coverlay fixedly be embedded in the sandy soil, the covering pulling force of its every square metre coverlay is 30～50 kilograms, from completing the coverlay location, continue to lay toward next sand furrow.

2, a kind of fixing the sand and greening method according to anti-dust the fixing the sand and greening method of the described a kind of coverlay of claim 1, selected to adapt to the herbaceous plant that grows in the sandy soil ground, has economic worth, shrub fructiferous tree to be the sand-fixing greening plant, it is characterized in that:

The performing step of a kind of greening method that fixes the sand of the present invention:

A, at first with on the coverlay of completing, establish several cutting openings;

B, respectively between two sand furrows, in the coverlay cutting opening, plantation three to ten row woody plants are planted and one set to five-element shrub;

C, get soilless cultivation plant nutrient, humus soil mixing water liquid, the shrub usage tree root that pours into kind of grass planting respectively or plant;

D, on coverlay the cutting opening place, smooth one-tenth matrix flows in the cutting opening sleet water naturally, reduces the natural evaporation of sleet water.